WilTec SKD-2 Operation Manual page 6

Wiring diagram for connecting various pump motors to the automatic machines
Wiring diagram for
phase 220 V pumps up to
1.1 kW
Possible errors and their elimination
Error
Pump does not start.
Pump does not stop.
Pump operates inter-
mittently.
© by WilTec Wildanger Technik GmbH
http://www.WilTec.de
http://www.aoyue.eu
http://www.teichtip.de
single- Wiring diagram
phase 220 V
1.1 kW; control via 2-phase re-
lay (contactor), relay selection
according to pump perform-
ance
Error at the machine
Board is damaged.

Board is damaged.

Flow detector is stuck in the upper

position.
Reset button is blocked.

Pump does not have sufficient pres-

sure.
Board is damaged.

Pump does not have sufficient pres-

sure.
Item 50611, 51247
for single- Wiring diagram for three-phase
pumps over 400 V
1.1 kW; control via 3-phase re-
lay (contactor), selection of re-
lay according to pump capacity
Error outside the machine
Missing voltage

Pump defective

Interchanged cables

Leak with more than 0.6 ℓ/min
loss.
There is a leak with less than
0.6 ℓ/min loss.
pumps, also over
Page 6
11 2020-1